🛡️ SUSE-SU-2026:0812-1 — mozillafirefox (CVE-2026-2757 +36 more)
Description
Security update for MozillaFirefox
This update for MozillaFirefox fixes the following issues:
Update to Firefox Extended Support Release 140.8.0 ESR (MFSA 2026-15) (bsc#1258568):
- CVE-2026-2757: Incorrect boundary conditions in the WebRTC: Audio/Video component
- CVE-2026-2758: Use-after-free in the JavaScript: GC component
- CVE-2026-2759: Incorrect boundary conditions in the Graphics: ImageLib component
- CVE-2026-2760: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
- CVE-2026-2761: Sandbox escape in the Graphics: WebRender component
- CVE-2026-2762: Integer overflow in the JavaScript: Standard Library component
- CVE-2026-2763: Use-after-free in the JavaScript Engine component
- CVE-2026-2764: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
- CVE-2026-2765: Use-after-free in the JavaScript Engine component
- CVE-2026-2766: Use-after-free in the JavaScript Engine: JIT component
- CVE-2026-2767: Use-after-free in the JavaScript: WebAssembly component
- CVE-2026-2768: Sandbox escape in the Storage: IndexedDB component
- CVE-2026-2769: Use-after-free in the Storage: IndexedDB component
- CVE-2026-2770: Use-after-free in the DOM: Bindings (WebIDL) component
- CVE-2026-2771: Undefined behavior in the DOM: Core & HTML component
- CVE-2026-2772: Use-after-free in the Audio/Video: Playback component
- CVE-2026-2773: Incorrect boundary conditions in the Web Audio component
- CVE-2026-2774: Integer overflow in the Audio/Video component
- CVE-2026-2775: Mitigation bypass in the DOM: HTML Parser component
- CVE-2026-2776: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
- CVE-2026-2777: Privilege escalation in the Messaging System component
- CVE-2026-2778: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component
- CVE-2026-2779: Incorrect boundary conditions in the Networking: JAR component
- CVE-2026-2780: Privilege escalation in the Netmonitor component
- CVE-2026-2781: Integer overflow in the Libraries component in NSS
- CVE-2026-2782: Privilege escalation in the Netmonitor component
- CVE-2026-2783: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component
- CVE-2026-2784: Mitigation bypass in the DOM: Security component
- CVE-2026-2785: Invalid pointer in the JavaScript Engine component
- CVE-2026-2786: Use-after-free in the JavaScript Engine component
- CVE-2026-2787: Use-after-free in the DOM: Window and Location component
- CVE-2026-2788: Incorrect boundary conditions in the Audio/Video: GMP component
- CVE-2026-2789: Use-after-free in the Graphics: ImageLib component
- CVE-2026-2790: Same-origin policy bypass in the Networking: JAR component
- CVE-2026-2791: Mitigation bypass in the Networking: Cache component
- CVE-2026-2792: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148
- CVE-2026-2793: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148
and Thunderbird 148
Affected software
SUSE-SU-2026:0812-1 is recorded against 1 package.
- mozillafirefox (fixed in 140.8.0-112.301.1)
Timeline and source
Published on 5 March 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
www.suse.com (Advisory)
bugzilla.suse.com (Report)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
www.suse.com (Web)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| mozillafirefox | — | 140.8.0-112.301.1 |
References
Similar Threats
- Unknown openSUSE-SU-2024:10071-1
- Unknown openSUSE-SU-2024:10600-1
- Unknown openSUSE-SU-2024:11570-1
- Unknown openSUSE-SU-2024:11614-1
- Unknown openSUSE-SU-2024:11908-1
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